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Patent Searching and Data


Title:
NOISE ESTIMATION METHOD, NOISE ESTIMATION APPARATUS, SPEECH PROCESSING CHIP AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/007841
Kind Code:
A1
Abstract:
A noise estimation method. The method comprises: determining an initially estimated noise power of noisy speech; calculating a smooth factor according to the probability of the existence of target speech; and updating an initially estimated noise power spectrum according to the noisy speech and the smooth factor so as to obtain an effective noise power spectrum. By means of the method, an effective noise power spectrum is made to be as close as possible to a real noise power spectrum, thereby avoiding noise residue, and improving the overall performance of speech enhancement.

Inventors:
HE TINGTING (CN)
WANG XINSHAN (CN)
ZHU HU (CN)
LI GUOLIANG (CN)
GUO HONGJING (CN)
Application Number:
PCT/CN2019/096503
Publication Date:
January 21, 2021
Filing Date:
July 18, 2019
Export Citation:
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Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G10L21/02
Foreign References:
CN103650040A2014-03-19
CN103650040A2014-03-19
CN108735225A2018-11-02
Other References:
ISRAEL COHEN: "Noise Spectrum Estimation in Adverse Environments:Improved Minima Controlled Recursive Averaging", IEEE RANSACTIONS ON SPEECH AND AUDIO PROCESSING,, 30 September 2003 (2003-09-30), XP011100006, DOI: 20200417104418Y
Attorney, Agent or Firm:
BEIJING HEADSTAY INTELLECTUAL PROPERTY AGENCY (CN)
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